Quick answers
- Does Chantell Y. Unnerstall accept Medicare assignment?
- Yes. Medicare's clinician data says Chantell Y. Unnerstall accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Chantell Y. Unnerstall see?
- In 2024, CMS data shows 37 Original Medicare patients and 1,229 services for Chantell Y. Unnerstall. This counts Original Medicare only and measures volume, not quality.
- What is Chantell Y. Unnerstall's NPI number?
- 1831281120. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Chantell Y. Unnerstall, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 37 |
|---|---|
| Services billed to Medicare | 1,229 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes (97112)269 services
- Therapy procedure using functional activities (97530)252 services
- Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes (97110)249 services
- Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care (G0283)132 services
- Application of ultrasound, each 15 minutes (97035)101 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- Arthritis75%
- High blood pressure68%
- Diabetes35%
- Anxiety35%
- Depression30%
Practice locations
Addresses where Chantell Y. Unnerstall is enrolled with Medicare (CMS data updated October 2, 2026).
- 2018 Phoenix Ctr DrWashington, MO 63090 (636) 283‑2185
- 4131 Union RdSaint Louis, MO 63129 (314) 274‑9222
Group practices
Medicare enrollment lists Chantell Y. Unnerstall as a member of these groups (CMS data updated October 2, 2026).
- Axes Physical Therapy LLC116 clinicians in the group
- Axes Physical Therapy I, LLC15 clinicians in the group
Specialties
Find other clinicians: Occupational Therapist in Private Practice, Missouri →
Other occupational therapists in Washington
Clinicians with the same Medicare primary specialty in Washington, MO — not a recommendation.
Other clinicians in Axes Physical Therapy LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OT |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831281120 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians